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{
"cells": [
{
"cell_type": "code",
"execution_count": 1,
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"True"
]
},
"execution_count": 1,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"import dotenv\n",
"import os\n",
"dotenv.load_dotenv('.env.rag')"
]
},
{
"cell_type": "code",
"execution_count": 4,
"metadata": {},
"outputs": [],
"source": [
"from langchain_openai import ChatOpenAI\n",
"llm = ChatOpenAI(model=\"gpt-4o-mini\")"
]
},
{
"cell_type": "code",
"execution_count": 9,
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"'Mpox is a disease that spreads through close contact, including sexual contact, and can cause symptoms such as blistered skin rashes, ulcers, and flu-like symptoms. It has been present in the U.S. since 2022 and was declared a global health emergency by the WHO. Recently, a new strain of mpox, known as clade Ib, has emerged, primarily affecting regions in Africa.'"
]
},
"execution_count": 9,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"import bs4\n",
"from langchain import hub\n",
"from langchain_chroma import Chroma\n",
"from langchain_community.document_loaders import TextLoader\n",
"from langchain_core.output_parsers import StrOutputParser\n",
"from langchain_core.runnables import RunnablePassthrough\n",
"from langchain_openai import OpenAIEmbeddings\n",
"from langchain_text_splitters import RecursiveCharacterTextSplitter\n",
"\n",
"# Load, chunk and index the contents of the blog.\n",
"folder = 'example_medical'\n",
"docs = []\n",
"\n",
"for file in os.listdir(folder):\n",
" if file.endswith('.txt'):\n",
" loader = TextLoader(os.path.join(folder, file))\n",
" docs.extend(loader.load())\n",
"\n",
"\n",
"text_splitter = RecursiveCharacterTextSplitter(chunk_size=1000, chunk_overlap=200)\n",
"splits = text_splitter.split_documents(docs)\n",
"vectorstore = Chroma.from_documents(documents=splits, embedding=OpenAIEmbeddings())\n",
"\n",
"# Retrieve and generate using the relevant snippets of the blog.\n",
"retriever = vectorstore.as_retriever()\n",
"prompt = hub.pull(\"rlm/rag-prompt\")\n",
"\n",
"\n",
"def format_docs(docs):\n",
" return \"\\n\\n\".join(doc.page_content for doc in docs)\n",
"\n",
"\n",
"rag_chain = (\n",
" {\"context\": retriever | format_docs, \"question\": RunnablePassthrough()}\n",
" | prompt\n",
" | llm\n",
" | StrOutputParser()\n",
")\n",
"\n",
"rag_chain.invoke(\"What is mpox?\")"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": []
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3",
"language": "python",
"name": "python3"
},
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 3
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.11.6"
}
},
"nbformat": 4,
"nbformat_minor": 2
}
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